Hugo tollnee



(No Model.)

H. TOLLNER.

LOCK.

10.645,337. Patented July 13, 1886.

UNITED STATES FFICEQ HUGO TOLLNER, OF BROOKLYN, NEV YORK.

LOCK.

SPECIFICATION forming part of Letters Patent No. 345,337, dated July 13,1886. Application filed December 14, 1885. Serial o. 185,552. (No model)To all whom it may concern.:

Be it known that I, HUGO TOLLNER, of

Brooklyn, Kings county, in the State of New York, have invented certainnew and useful Improvements in Locks, of which the following isaspecication. I have devised a construction of lock which is eminentlycheap. It isaspringlock adapted for toy boxes and small eases in generalwhere great elaboration and strength are not required. The catch is induplicate, engaging on two faces of the hasp. They are elastic andrequire no separate spring.

In what I esteem the most complete form of the invention the entire lockis in only two pieces of metal, the case being one, and the two catchesand their operating-levers, as also a central arm which centers andsteadies the key, being another single piece adapted to be formed by asingle operation of suitable dies.

There is no back plate required for the case.'

The fastening of the spring-catehes to the case and to the box may beeffected by one of the nails which secures said case to the box.

The accompanying drawings form a part of this specification, andrepresent what I consider thebest means of carrying out the invention.

Y Figure l is a face view, and Fig. 2 an edge view, of a single piece ofhard brass which con` stitutes the whole mechanism of the lock. Fig. 3is a face view of the lock complete. Fig. 4 is a view of the interiorwith the key turned to effect the unlocking, and Fig. 5 represents thekey detached.

Similar letters of reference indicate like or corresponding parts in allthe figures where they occur.

M is a portion of the box on which the improved lock is applied.

nickel-plated or otherwise decorated. The otherportion,which constitutesthe levers,catches, and springs, must be of hard iron or steel or of ahard brass. I have in my experiments used the latter of a thicknessabout No. 24, Birmingham gage. I will designate this part entire by theletter D, appending additional marks, as D D2, when necessary, todesignatey special parts thereof. The levers are springarms D D', each,having a good bearing-surface, d d', on its inner edge, to receive theaction of the key, as' will presently appear. Each arm D is provided atits upper end with a hook or catch, D2. The extreme top is beveled, asshown. The lower edge or base of the entire part D is straight, andmatches firmly against a corresponding straight inner ledge or offset inthe case A. These abutting surfaces are marked, respectively, A* and DfiThey serve by their irrn bearing one against theother to hold the entirepart D against being tilted or inclined to the right or left. A centralarm, D3, formed of a portion of the metal lying between the levers D D,performs an important function. It is punched to receive the nib orcentral pivot ofthe key, and t0 form a reliable center on which it mayturn to effect the forcible springing apart of the levers D D to effectthe unlocking.

E isthe hasp,which may be a single piece of soft brass properly cut andbent and secured to the lid M ofthe box in the obvious manner by nailsF. On closing the box the hasp acts on the beveled vupper ends of D2 toforce them open. So soon as the hasp E isfully down the hooks D2 engagein the hole formed therein, and the box is locked and remains lockeduntil the key is introduced and partially turned.

G is the key, certain portions being designated,when necessary, byadditional marks,G G2. A pivot or nib, g, on the center ofthe end isreceived in the hole d in the central arm, D3. There is aproperly-shaped hole in the case A to receive the wings G Gr2 of thekey. So soon as the key is fully inserted and turned one-v fourth of arevolution,the levers DD are forced apart by the action of the wings GGr2 on the surfaces d d', and the hooks D2 being thus disengaged, thelock is unlocked and the lid may be lifted. A nail, B, driven through asuita- IOO ble hole in the center of the base of the part D and througha corresponding holein the casing A, secures the entire part D and alsoaids to secure said casing A to the box. of the part D may be e'ectedinthe same dies which perform the cutting. It is important to bend thelevers D D' about as shown in Fig. 2, so as to allow the Wings G Gr2 ofthe key to engage these levers as they are turned.

Modifications may be made in the forms and proportions without departingfrom the principle or sacricing the advantages of the invention.

Parts of the invention can be used without the whole. Y

I can rivet the part D to the part A instead of using the nail B, anddepend upon the nails at C G to hold the whole to the box M. Such may bepreferable in some cases; but I prefer The bending.

and the arms or levers D Dl being bent for- Ward,as shown, the centralbearing contributes t0 very efficient and smooth working.

I have in my experiments made the 'lock about one inch long and a.half-inch wide.

I claim as my invention- 1. The central bearing,Da d, spring-levers D D,with their bevel ends and hooks D D formed of a single piece or plate,and the levers being bent forward out of the plane of central bearing,so as to be operated by a key pivoted in the latter, as hereinfspecifed.

2. In a lock, the casing A, having an in- 4o terior oiset, A*, incombination with a single interior part, D, having a corresponding edge,D*, and with a fastening, B,A adapted to secure the casing and springtogether and both to the box, substantially as and for the purposesherein specified.

In testimony whereof I have hereunto set my hand, at New York city, NewYork, this 10th day of December, 1885, in the presence of twosubscribing witnesses.

HUGO TOLLNER.

Witnesses:

THOMAS DREW STETsoN, CHARLES R. SEARLE.

